大比丘三千威儀 1.12

1.12

九者，不知布薩羯磨。布薩者，秦言淨住，義言長養比丘和合。若作百一羯磨而不知和合，是名不知布薩。

Ninth, not understanding the poṣadha karman. Poṣadha in the language of Qin means “dwelling in purity”; its meaning is the harmonious unity of bhikṣus fostering spiritual growth. If one performs the hundred-and-one karmans but does not understand harmony, this is called not understanding poṣadha.